Post offices in South River, NJ

2 locations. Everything in South River.

• South River Post Office

  USPS

  44 Obert Street

  Mo-Fr 10:00-17:00, Sa 10:00-16:00, Su closed
• The UPS Store Post Office

  UPS

  D, 293 Route 18

  Mon–Fri9 am–7 pmSat9 am–5 pmSun10 am–3 pm